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Observations

It is the personal responsibility of each user of CNFAIC to decide whether or how to use any information found here.

Skiing, snowboarding, snowmachining, hiking, walking, and all other methods of travel or recreation on snow are dangerous and a potential hazard to personal safety. Each person who ventures onto snow is responsible for his or her own safety. Many snow travelers find that education, information, and experience can increase their safety when they are on snow. The public observations reported on this site may appear to offer information about the safety of traveling or recreating on snow, but it is critical to remember that such observations are not evaluated or edited for accuracy and represent the subjective experience of the author.

Individuals may have widely differing perceptions, for a given location, date, and time, of the safety of traveling or recreating on snow, of avalanche hazards, and of skiing or snowboarding conditions. The hazards and conditions reported in an observation can change rapidly. In addition, individuals can differ greatly in both their perception of objective hazards and their acceptance of the risk to personal safety of these hazards.

Submit an Observation All Regions|Turnagain|Girdwood/Portage|Placer|Summit|Chugach State Park|Hatcher Pass|Outside of Advisory Area
PhotosDateLocationAvalanche?General Observations
1294704000January 11, 2011 12:00Outside of Advisory Area - Twin Peaks areaThis skier triggered avalanche happened this past Sunday afternoon, with no injuries reported. There were several different bed surfaces, including the ground. Snow in this area was much more shall …
1294444800January 8, 2011 12:00Outside of Advisory Area - SunnysideThis skier triggered avalanche just south of the snowmachine uptrack was remotely triggered from 300 feet away near some trees. You can see the ski tracks to the right.
1294358400January 7, 2011 12:00Outside of Advisory Area - Palmer Creek, HopeFull burial of snowboarder in Palmer Creek drainage near Hope. Rider was fourth person down the slope (you can see his tracks in the upper center of photo). Avalanche triggered near a scoured are …
1294358400January 7, 2011 12:00Turnagain - Widowmaker Peak
1294272000January 6, 2011 12:00Turnagain - Main Bowl, Seattle ridge
1294272000January 6, 2011 12:00Girdwood/Portage - Raggedtop
1294272000January 6, 2011 12:00Outside of Advisory Area - Sunburst South FacePit dug above crown on looker's left edge of large natural avalanche. D3.5, 600ft. wide est. Obvious surface hoar as the initiation layer. Lower on the slope it stepped into multiple different deep …
1294272000January 6, 2011 12:00Outside of Advisory Area - Tincan South FaceLook closely to follow the outline of the avalanche that included the entire gully below the ski tracks. This came out during the recent storm on 1-4 or 1-5.
1294272000January 6, 2011 12:00Outside of Advisory Area - Sunburst, South FaceThis large class 3 natural avalanche happened during the end of the storm on 1-4 or 1-5. The weak layer at the top was confirmed as buried surface hoar, with clean collapsing shears. ECTP 24 Q1. Lo …
1294272000January 6, 2011 12:00Turnagain - Seattle ridge, Warmup Bowl3000 feet elevation. West and North facing slope. Skier triggered. 2-6 feet deep.
1294185600January 5, 2011 12:00Outside of Advisory Area - Seattle RidgeThis large avalanche on Seattle Ridge failed some time during the last push of the storm, likely the night of 1/4, or the morning of 1/5. While this was one of the biggest naturals observed in the …
1294185600January 5, 2011 12:00Outside of Advisory Area - SunburstThis large avalanche on Sunburst failed some time during the last push of the storm, likely the night of 1/4, or the morning of 1/5. While this was one of the biggest naturals observed in the area, …
1294099200January 4, 2011 12:00Outside of Advisory Area - EddiesSeveral small slab avalanches were seen in low light on the West face of Eddies. They are outlined in this picture, and likely failed on a buried layer of surface hoar 1-2ft under the snow surface.
1294099200January 4, 2011 12:00Outside of Advisory Area - TincanLots of information on pit documentation. Whumphing and small shooting cracks were observed outside of pit, with small to medium recent natural avalanche activity noted on surrounding mountains.
1294012800January 3, 2011 12:00Outside of Advisory Area - Turnagain Pass29 inches snowfall/2.2 inches water equivalent at the Center Ridge weather station at 1800 feet.
1293926400January 2, 2011 12:00Summit - Tenderfoot RidgeThis remotely triggered avalanche slid when a skier was approaching the upper section of the Tenderfoot Ridgeline in the Summit Lake area. A shooting crack shot out 75ft in front of him and release …
1293753600December 31, 2010 12:00Outside of Advisory Area - NW shoulder, Butch, SummitThis is a thin slice of snow with light shining through. Notice the light density surface hoar layers. Compare this to the snowpilot profile from the same day. This will become weak layers when we …
1293753600December 31, 2010 12:00Outside of Advisory Area - SunburstThis is a photo of the crown face of a skier triggered slide on the southwest side of Sunburst around 3000 feet elevation. The slab failed on the most recent layer of buried surface hoar that form …
1293753600December 31, 2010 12:00Outside of Advisory Area - NW shoulder of ButchMultiple layers of surface hoar below the new snow, in the faceting layers above the rain crust. One surface hoar layer collapsed in compression tests. The facets compressed gradually with increased …
1292371200December 15, 2010 12:00Turnagain - EddiesTake note of the large temperature gradient and low density facets under the crust. -KW
1292371200December 15, 2010 12:00Outside of Advisory Area - CornbiscuitThis was a very shallow spot on the West face of Cornbiscuit. There was no indication as to its depth until we started to dig. Because of the shallow depth the temperature gradient and degree of fac …
1292025600December 11, 2010 12:00Turnagain - South Aspect Superbowl PeakNew glide cracks are appearing in Turnagain Pass mostly on south aspects.
1291939200December 10, 2010 12:00Outside of Advisory Area - Tenderfoot ridge, Summit LakeComplicated structure but low strength in the slab layers. First time I've seen failure on the Nov. 22 rain crust.
1291852800December 9, 2010 12:00Outside of Advisory Area - Seattle ridgeThis surface hoar was widespread and well developed from the road to the ridge tops.
1291852800December 9, 2010 12:00Outside of Advisory Area - Stock Run Bowl, Seattle RidgeGraph gives impression of generally strong snowpack. However multiple failures on buried surface hoar give some concern. Failure at 30-32cm seemed the easiest to trigger, bordering on Q1 shear quali …
Showing 2651 - 2675 of 2974 items
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